William Grey, 13th Baron Grey de Wilton, was an English baron and military commander serving in France in the 1540s and 1550s, and in the Scottish Wars of the 1540s.

The Rough Wooing, also known as the Eight Years' War, was part of the Anglo-Scottish Wars of the 16th century. Following its break with the Catholic Church, England attacked Scotland, partly to break the Auld Alliance and prevent Scotland being used as a springboard for future invasion by France, partly to weaken Scotland, and partly to force the Scottish Parliament to confirm the existing marriage alliance between Mary, Queen of Scots, and the English heir apparent Edward, son of King Henry VIII, under the terms of the Treaty of Greenwich of July 1543. An invasion of France was also contemplated.